Area Code 303-200 : Area Code 303-299 is your one-stop site for area code lookup, phone number lookup, and free phone number reviews. Following is reverse lookup detail & reviews for area code 303 2xx including 303 area code location map. Major cities such as Denver, Aurora, Centennial, Lakewood, Westminster covered within area code 303 2xx are also listed on this page. More area codes, including those outside of Colorado, United States of America, are on the homepage.

Reverse Lookup Detail for Area Code 303 2xx

Area code 303 covers part of Coloradostate, covering most of Denver, Arapahoe, Adams counties. It was started on Jan 01, 2000. This region follows US/Mountain + Daylight Savings timezone. Other popular area codes that belong to Colorado state include 719, 720, 970.

Verified changes in Area Code 303 2XX

Date ChangedChange Details
Jun 13, 2014Area code 303-284 subscribers are operational from Jun 13, 2014.
Jun 13, 2014Area code 303-200 subscribers are operational from Jun 13, 2014.
Jun 13, 2014Area code 303-248 subscribers are operational from Jun 13, 2014.
May 22, 2014Area code 303-203 subscribers are operational from May 22, 2014.
May 22, 2014Area code 303-259 subscribers are operational from May 22, 2014.
Aug 15, 2013Area code 303-265 was introduced on Sep 01, 2005 and subscribers are operational from Aug 15, 2013.

Area Code 303-200 - Area Code 303-299 (Covers 303 2xx xxxx phone numbers)

Area CodeCityCountyPopulationNetwork Operator
303-200AuroraDenver600,158Teleport Communications America LLC - CO
303-200DenverDenver600,158Comcast Phone of Colorado LLC - CO
303-201DenverDenver600,158USA Mobility Wireless Inc
303-202LakewoodDenver600,158Qwest Corporation
303-203DenverDenver600,158American Messaging (AM) Inc
303-204EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-205LakewoodDenver600,158Qwest Corporation
303-206DenverDenver600,158USA Mobility Wireless Inc
303-207DenverDenver600,158USA Mobility Wireless Inc
303-208DenverDenver600,158USA Mobility Wireless Inc
303-209DenverDenver600,158MCImetro Access Transmission Services LLC
303-210CentennialDenver600,158Sprint Spectrum LP
303-211737,213Community Support And Referral Services
303-212CentennialDenver600,158Contact Paging of Colorado
303-213DenverDenver600,158USA Mobility Wireless Inc
303-214-3DenverArapahoe572,003iLoka Inc dba NewCloud Networks - CO
303-214-0DenverArapahoe572,003MCImetro Access Transmission Services LLC
303-214-8DenverArapahoe572,003T-Mobile USA Inc
303-215GoldenDenver600,158Qwest Corporation
303-216GoldenDenver600,158Qwest Corporation
303-217-5DenverDenver600,158Cbeyond Communications LLC - CO
303-217-8DenverDenver600,158Eschelon Telecom of Colorado Inc - CO
303-217-0DenverDenver600,158MCImetro Access Transmission Services LLC
303-217-3DenverDenver600,158New Cingular Wireless PCS LLC
303-217-6DenverDenver600,158T-Mobile USA Inc
303-218-0DenverDenver600,158MCImetro Access Transmission Services LLC
303-218-8DenverDenver600,158New Cingular Wireless PCS LLC
303-219-0DenverAdams441, CLEC LLC - CO
303-219-5DenverAdams441,603Eschelon Telecom of Colorado Inc - CO
303-219-0DenverAdams441,603MCImetro Access Transmission Services LLC
303-219-8DenverAdams441,603Neutral Tandem-Colorado LLC - CO
303-219-1DenverAdams441,603Pac-West Telecomm Inc - CO
303-219-6EnglewoodAdams441,603YMax Communications Corporation - CO
303-219-7HendersonAdams441,603360networks (USA) Inc - CO
303-220CentennialDenver600,158Qwest Corporation
303-221CentennialDenver600,158Qwest Corporation
303-222DenverDenver600,158MCImetro Access Transmission Services LLC
303-223DenverDenver600,158Global Crossing Local Services Inc - CO
303-224CentennialDenver600,158Qwest Corporation
303-225-8DenverDenver600,158Cbeyond Communications LLC - CO
303-225-0DenverDenver600,158Global Crossing Local Services Inc - CO
303-226DenverDenver600,158ICG Telecom Group Inc - CO
303-227Commerce CityDenver600,158Qwest Corporation
303-228DenverDenver600,158ICG Telecom Group Inc - CO
303-229EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-230DenverDenver600,158USA Mobility Wireless Inc
303-231LakewoodDenver600,158Qwest Corporation
303-232LakewoodDenver600,158Qwest Corporation
303-233LakewoodDenver600,158Qwest Corporation
303-234LakewoodDenver600,158Qwest Corporation
303-235LakewoodDenver600,158Qwest Corporation
303-236LakewoodDenver600,158Qwest Corporation
303-237LakewoodDenver600,158Qwest Corporation
303-238LakewoodDenver600,158Qwest Corporation
303-239LakewoodDenver600,158Qwest Corporation
303-240DenverDenver600,158USA Mobility Wireless Inc
303-241WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-242-0CentennialDenver600,158Sprint Spectrum LP
303-242-8DenverDenver600,158Level 3 Communications LLC - CO
303-242-0DenverDenver600,158MCImetro Access Transmission Services LLC
303-242-9WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-243-3DenverDenver600,158Eschelon Telecom of Colorado Inc - CO
303-243-5DenverDenver600,158McLeodUSA Telecommunication Services Inc - CO
303-243-4DenverDenver600,158New Cingular Wireless PCS LLC
303-243-2DenverDenver600,158T-Mobile USA Inc
303-243-0Fort MorganDenver600,158N.E. Colorado Cellular Inc
303-244DenverDenver600,158Qwest Corporation
303-245BoulderDenver600,158Qwest Corporation
303-246-0CentennialDenver600,158Sprint Spectrum LP
303-246-2DenverDenver600,158T-Mobile USA Inc
303-247BoulderDenver600,158Qwest Corporation
303-248-0AuroraDenver600,158Teleport Communications America LLC - CO
303-248-3DenverDenver600,158Comcast Phone of Colorado LLC - CO
303-248-7DenverDenver600,158Eschelon Telecom of Colorado Inc - CO
303-248-6DenverDenver600,158New Cingular Wireless PCS LLC
303-249DenverDenver600,158New Cingular Wireless PCS LLC
303-250DenverDenver600,158New Cingular Wireless PCS LLC
303-251DenverDenver600,158USA Mobility Wireless Inc
303-252NorthglennDenver600,158Qwest Corporation
303-253-0AuroraDenver600,158Teleport Communications America LLC - CO
303-253-5WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-254NorthglennDenver600,158Qwest Corporation
303-255NorthglennDenver600,158Qwest Corporation
303-256AuroraDenver600,158Teleport Communications America LLC - CO
303-257CentennialDenver600,158Sprint Spectrum LP
303-258-6DenverDenver600,158T-Mobile USA Inc
303-258-0NederlandDenver600,158Qwest Corporation
303-259DenverDenver600,158American Messaging (AM) Inc
303-260-0DenverDenver600,158Qwest Corporation
303-260-9DenverDenver600,158T-Mobile USA Inc
303-260-0GoldenDenver600,158Qwest Corporation
303-261-0AuroraArapahoe572,003Qwest Corporation
303-261-3DenverArapahoe572,003Cbeyond Communications LLC - CO
303-261-8DenverArapahoe572,003Level 3 Communications LLC - CO
303-261-7DenverArapahoe572,003T-Mobile USA Inc
303-262DenverDenver600,158AT&T Local
303-263WestminsterDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-264-0AuroraDenver600,158Teleport Communications America LLC - CO
303-264-9DenverDenver600,158T-Mobile USA Inc
303-264-8EnglewoodDenver600,158Cellco Partnership dba Verizon Wireless - CO
303-265-4BroomfieldDenver600,158Qwest Corporation
303-265-6LittletonDenver600,158Qwest Corporation
303-266DenverDenver600,158USA Mobility Wireless Inc
303-267CentennialDenver600,158Qwest Corporation
303-268Greenwood VillageDenver600,158ICG Telecom Group Inc - CO
303-269-9CentennialDenver600,158Sprint Spectrum LP
303-269-2LafayetteDenver600,158Qwest Corporation
303-270DenverDenver600,158Qwest Corporation
303-271GoldenDenver600,158Qwest Corporation
303-272BroomfieldDenver600,158Qwest Corporation
303-273GoldenDenver600,158Qwest Corporation
303-274LakewoodDenver600,158Qwest Corporation
303-275LakewoodDenver600,158Qwest Corporation
303-276EnglewoodDenver600,158Convergent Communications Inc - CO
303-277GoldenDenver600,158Qwest Corporation
303-278GoldenDenver600,158Qwest Corporation
303-279GoldenDenver600,158Qwest Corporation
303-280NorthglennDenver600,158Qwest Corporation
303-281DenverDenver600,158Qwest Corporation
303-282DenverDenver600,158Qwest Corporation
303-283DenverArapahoe572,003Qwest Corporation
303-284DenverDenver600,158Comcast Phone of Colorado LLC - CO
303-285DenverDenver600,158ICG Telecom Group Inc - CO
303-286Commerce CityDenver600,158Qwest Corporation
303-287Commerce CityDenver600,158Qwest Corporation
303-288Commerce CityDenver600,158Qwest Corporation
303-289Commerce CityDenver600,158Qwest Corporation
303-290CentennialDenver600,158Qwest Corporation
303-291DenverDenver600,158Qwest Corporation
303-292DenverDenver600,158Qwest Corporation
303-293DenverDenver600,158Qwest Corporation
303-294DenverDenver600,158Qwest Corporation
303-295DenverDenver600,158Qwest Corporation
303-296DenverDenver600,158Qwest Corporation
303-297DenverDenver600,158Qwest Corporation
303-298DenverDenver600,158Qwest Corporation
303-299DenverDenver600,158Qwest Corporation

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303 Area Code

At, you'll find current information on 303area code, including 303 area code location & map. Other phone area code may be searched using's area code locator service on the homepage. Use the phone number search function above to instant verify area code lookup & phone number lookup.

Colorado Area Codes Directory provides a free area codes directory with detailed information on the various USA area codes, area codes listing, and other area codes phone details. also lists international area codes within the North American Numbering Plan. And you can verify owners of phone numbers using the reverse number lookup service by entering a 10 digit phone number in the top most text box.

303 Area Code Finder

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Telephone/Landline Area Codes is a resource of North American telephone area codes. Beyond area code listings, relevant information about each area code is detailed. For example, this page details area code 303-2. You can also search area codes by state, and within the NANP, find country area codes.

Free Area Codes Locator for Colorado

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303 Area Code Reviews provides local reviews for phone numbers and aggregates results per area code. It shows you the area code location covered by each area code; for example, the LA area code reveiws covers local business phone numbers area in Los Angeles. This page details area code 303-2. All USA states area codes may be found using

Telephone Area Codes in Colorado

The telephone area code prefixes local phone numbers & is not required to be dialed. For area codes by city, search Area codes telephone differ from region to region, and in some places the area code must be dialed even when calling locally within that region. Find out more with area code decoder.

External links & resources for area code 303 in Colorado

  • CitySites Pages for Colorado (Source: Official CitySites)
  • Wikipedia Article on Area Code 303 (Source: Wikipedia)
  • State Information Resources for Colorado (Source: State Information)